22/09/2021
How can we make IPv6 subnets?😎
In , the important point is your Subnet numbers instead of the host numbers. There are too much hosts but the subnets you would like to have can be different according to your need.
So, we will focus on dividing subnets and subnet numbers of Addresses.
As we have discusses above, there are three parts in an IPv6 Address. The first 48 bits are Network bits, the 16 bits after that are Subnetting bits and the last 64 bits are Interface bits.
Here, our bits that we will use on an address will be calculated according to our need. For example, if we have a /48 prefix and we need 8 subnets, we can use 3 subnetting bits (23=8). Our slash notation will be 48+3= 51 (/51). With this IPv6 Subnetting , we can use 8 subnets with this Prefix. Beside, we will have (213=16384) /64s for each Subnet.
You can find the common Subnet Prefixes Table below. As the table shows for example, if you have a /56 Prefix, you can have :
16 /60 Subnets
256 /64 Subnets
if you have a /52 Prefix, you can have :
16 /56 Subnets
256 /60 Subnets
4096 /64 Subnets
Shayma Tarif
